NAME

SYNOPSIS

apt-rdepends [options] [pkgs ...]

DESCRIPTION

apt-rdepends searches through the APT cache to find package
dependencies. apt-rdepends knows how to emulate the result of calling
apt-cache with both depends and dotty options.
By default, apt-rdepends shows a listing of each dependency a package
has. It will also look at each of these fulfilling packages, and
recursively lists their dependencies.

OPTIONS

-b, --build-depends
Show build dependencies instead of normal package dependencies.
-d, --dotty
dotty takes a list of packages on the command line and
generates output suitable for use by springgraph. The result
will be a set of nodes and edges representing the relationships
between the packages. By default the given packages will trace
out all dependent packages which can produce a very large
graph.
Blue lines are pre-depends, green lines are conflicts, yellow
lines are suggests, orange lines are recommends, red lines are
replaces, and black lines are depends.
Caution, dotty cannot graph larger sets of packages.
-p, --print-state
Shows the state of each dependency after each package version.
See --state-follow and --state-show for why this is useful.
-r, --reverse
Shows the listings of each package that depends on a package.
Furthermore, it will look at these dependent packages, and find
their dependers.
-f, --follow=DEPENDS
A comma-separated list of DEPENDS types to follow recursively.
By default, it only follows the Depends and PreDepends types.
The possible values for DEPENDS are: Depends, PreDepends,
Suggests, Recommends, Conflicts, Replaces, and Obsoletes.
In --build-depends mode, the possible values are: Build-Depends, Build-Depends-Indep, Build-Conflicts, Build-Conflicts-Indep.
-s, --show=DEPENDS
A comma-separated list of DEPENDS types to show, when
displaying a listing. By default, it only shows the Depends
and PreDepends types.
--state-follow=STATES--state-show=STATES
These two options are similar to --follow and --show. They
both deal with the current state of a package. By default, the
value of STATES is Unknown, NotInstalled, UnPacked,
HalfConfigured, HalfInstalled, ConfigFiles, and Installed.
These options are useful, if you only want to only look at the
dependencies between the Installed packages on your system.
You can then call:
apt-rdepends --state-follow=Installed libfoo
Or if you want to only show the packages installed on your
system:
apt-rdepends --state-follow=Installed
--state-show=Installed libfoo
pkgs The list of packages on which to discover dependencies.
-v, --vcg, --xvcg
This option takes a list of packages on the command line and
generates output suitable for use by xvcg. The result will be
a set of nodes and edges representing the relationships between
the packages. By default the given packages will trace out all
dependent packages which can produce a very large graph.
Blue lines are pre-depends, green lines are conflicts, yellow
lines are suggests, orange lines are recommends, red lines are
replaces, and black lines are depends.

SEEALSO

BUGS

apt-rdepends does not emulate apt-cache perfectly. It does not display
information about virtual packages, nor does it know about virtual
packages when it is in reverse dependency mode.
apt-rdepends also does not know how to stop after a certain depth has
been reached.
apt-rdepends cannot do reverse build-dependencies. This is really
difficult, since it would have to load the whole cache into memory
before discovering which packages depend on others to build.
apt-rdepends exists. This functionality should really reside in apt-cache itself.